In a conductor with a resistance of 2 ohms, the current strength is 20A. How much heat is released

In a conductor with a resistance of 2 ohms, the current strength is 20A. How much heat is released in the conductor in 1 minute.

To find out the amount of heat released on the presented conductor, we use the formula (we apply the Joule-Lenz law): Q = I ^ 2 * R * t.

Data: I – current in the conductor (I = 20 A); R – resistance (R = 2 Ohm); t – elapsed time (t = 1 min = 60 s).

Let’s make a calculation: Q = I ^ 2 * R * t = 20 ^ 2 * 2 * 60 = 48 kJ.

Answer: Heat in the amount of 48 kJ should have been released on the presented conductor.



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